PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Argyrosaurus

Reptilia

Taxonomy

Argyrosaurus was named by Lydekker (1893). It is the type genus of Argyrosaurinae.

It was assigned to Sauropoda by Huene (1908), Huene (1909) and von Zittel (1911); to Sauropoda by Ameghino (1900), Arldt (1909) and Tatarinov (1964); to Atlantosauridae by Nopcsa (1901) and Bonaparte (1978); to Titanosaurinae by Romer (1956), Steel (1970) and Casanovas et al. (1987); to Argyrosaurinae by Bonaparte (1996); to Titanosauridae by Lydekker (1893), Marsh (1895), Marsh (1896), Marsh (1898), Huene (1927), Huene (1927), Huene (1927), Huene (1929), Huene (1929), Gilmore (1946), Romer (1966), Mones (1972), Molnar (1980), Bonaparte and Powell (1980), Bonaparte (1984), Carroll (1988), McIntosh (1990), McIntosh (1990), Upchurch (1995), Jacobs et al. (1996), McIntosh (1997), Salgado and Calvo (1997), Bonaparte (1999), Powell (2003) and Salgado and Coria (2005); to Titanosauria by Wilson (2002), Upchurch et al. (2004), Curry Rogers (2005) and Mannion and Otero (2012); and to Lithostrotia by Otero and Reguero (2013).

Species

A. superbus

Synonymy list

Year	Name and author
1893	Argyrosaurus Lydekker p. 9–12 figs. Pl. 4:5, 5
1895	Argyrosaurus Marsh
1896	Argyrosaurus Marsh p. 242
1898	Argyrosaurus Marsh p. 158
1900	Argyrosaurus Ameghino p. 216
1901	Argyrosaurus Nopcsa p. 203
1908	Argyrosaurus Huene p. 348
1909	Argyrosaurus Arldt p. 263
1909	Argyrosaurus Huene p. 15
1911	Argyrosaurus von Zittel p. 288
1927	Argyrosaurus Huene p. 126
1929	Argyrosaurus Huene p. 86
1946	Argyrosaurus Gilmore p. 30
1956	Argyrosaurus Romer p. 622
1964	Argyrosaurus Tatarinov p. 552
1966	Argyrosaurus Romer p. 370
1970	Argyrosaurus Steel p. 75
1972	Argyrosaurus Mones p. 30
1978	Argyrosaurus Bonaparte p. 557
1980	Argyrosaurus Bonaparte and Powell p. 26
1980	Argyrosaurus Molnar p. 137
1984	Argyrosaurus Bonaparte p. 141
1987	Argyrosaurus Casanovas et al. p. 98
1988	Argyrosaurus Carroll
1990	Argyrosaurus McIntosh p. 57
1995	Argyrosaurus Upchurch p. 380
1996	Argyrosaurus Bonaparte pp. 108-109 figs. 42-43
1996	Argyrosaurus Jacobs et al. p. 600
1997	Argyrosaurus McIntosh p. 658
1997	Argyrosaurus Salgado and Calvo p. 45
1999	Argyrosaurus Bonaparte pp. 165-166
2002	Argyrosaurus Wilson p. 248
2003	Argyrosaurus Powell p. 49
2004	Argyrosaurus Upchurch et al. p. 267
2005	Argyrosaurus Curry Rogers pp. 69-71 figs. 2.11-2.13
2005	Argyrosaurus Salgado and Coria p. 440
2012	Argyrosaurus Mannion and Otero
2013	Argyrosaurus Otero and Reguero p. 9–10

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874
subphylum	Vertebrata
superclass	Gnathostomata
—	Osteichthyes	()
subclass	Sarcopterygii	()
subclass	Dipnotetrapodomorpha	(Nelson 2006)
subclass	Tetrapodomorpha	()
—	Tetrapoda
—	Reptiliomorpha
—	Anthracosauria
subclass	Amphibiosauria	Kuhn 1967
—	Cotylosauria	()
—	Amniota
—	Sauropsida
class	Reptilia
subclass	Eureptilia	()
—	Romeriida

Rank	Name	Author
—	Diapsida	()
—	Archosauromorpha	(Huene 1946)
—	Crocopoda
—	Archosauriformes	Gauthier 1986
—	Eucrocopoda
—	Archosauria	()
informal	Avemetatarsalia
—	Ornithodira
—	Dinosauromorpha
—	Dinosauriformes
—	Dinosauria	()
—	Saurischia	()
—	Sauropoda	()
—	Gravisauria
—	Eusauropoda
—	Neosauropoda
—	Macronaria
—	Titanosauriformes
—	Titanosauria
genus	Argyrosaurus

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Argyrosaurus Lydekker 1893

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†Argyrosaurus superbus Lydekker 1893

Diagnosis

Reference	Diagnosis
J. E. Powell 2003	The same as for the type species.
P. D. Mannion and A. Otero 2012	Argyrosaurus can be diagnosed by five autapomorphies (marked by an asterisk), as well as a unique combination of character states: (1) medial margin of humerus forms a transversely wide ridge that projects prominently anteriorly∗; (2) midshaft of humerus extremely compressed anteroposteriorly (transverse to anteroposterior width ratio = 2.6)∗; (3) transverse width of distal end of radius only slightly greater than midshaft width (ratio = 1.3)∗; (4) radius is subtriangular in distal end view∗; (5) presence of ossified carpals; (6) extreme elongation of metacarpals (longest metacarpal to radius length ratio = 0.6)∗; (7) metacarpals II and III longest elements in metacarpus.

Measurements

No measurements are available

Composition:

hydroxyapatiteinfrao

Entire body:

yesg

Adult length:

10 to < 100infrao

Adult width:

10 to < 100infrao

Adult height:

10 to < 100infrao

Maximum body mass:

30000 kgg

Minimum body mass:

10000 kgg

Thickness:

thickinfrao

Architecture:

compact or denseinfrao

Form:

sphericalinfrao

Ontogeny:

accretion, modification of partsinfrao

Grouping:

gregariousinfrao

Environment:

terrestrialinfrao

Locomotion:

actively mobileinfrao

Life habit:

ground dwellinginfrao

Diet:

herbivoreinfrao

Reproduction:

oviparousinfrao

Dispersal:

direct/internalinfrao

Dispersal 2:

mobileinfrao

Created:

2005-08-25 06:13:18

Modified:

2005-08-25 08:13:18

Source: g = genus, infrao = infraorder

References: Peczkis 1995, Marsh 1875

Age range: base of the Campanian to the top of the Maastrichtian or 83.60000 to 66.00000 Ma

Collections: one only

Time interval	Ma	Country or state	Original ID and collection number
Campanian - Maastrichtian	83.6 - 66.0	Argentina (Chubut)	Dinosauria indet. (51618)